Home / 12,542.31-17,307.59-6,876.99

Finding the Fourth Proportional to 12,542.31, 17,307.59 and 6,876.99

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Solution

The fourth proportional to 12,542.31, 17,307.59 and 6,876.99 is: 9,489.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,542.31 : 17,307.59 = 6,876.99 : x
  2. Step 2: Convert to fraction form
    12,542.31/17,307.59 = 6,876.99/x
  3. Step 3: Cross multiply
    12,542.31x = 17,307.59 × 6,876.99
  4. Step 4: Simplify right side
    12,542.31x = 119,024,088.97
  5. Step 5: Solve for x
    x = 119,024,088.97/12,542.31
  6. Step 6: Final answer
    x = 9,489.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.